Horner APG HE-ADC920 User Manual
MAN0317-09 10 NOV 2006 PAGE 1
ADC920
Thermistor / Current /
Voltage Analog Input
Module
HE800ADC920 / HE-ADC920*
12-Bit Resolution
This datasheet also covers products starting with IC300.
* HE- denotes plastic case.
1 SPECIFICATIONS
ADC920 ADC920
Number of
Channels
Input Ranges
(including
over-range)
Thermistor
(1/10° resolution)
Current
Voltage
Resolution 12-Bit Terminal Type Spring Clamp, Removable
Maximum Error
at 25°C
Conversion Time
(PLC Update
Rate)
Additional error
for temperatures
other than 25°C
Required Power
(Steady State)
Required Power
(Inrush)
Maximum OverCurrent
External Power
Supply
CE
UL
Set by PLC Scan Time
0.19 W (8 mA @ 24 VDC)
See Compliance Table at http://www.heapg.com/Support/compliance.htm
12
-37–115°C
-35–240°F
0–20.47 mA
0–5.11 VDC
0.1% Full Scale
0.01% / C°
Negligible
35 mA
None
Converter Type
Input Impedance
Thermistor
Current
Voltage
Operating
Temperature
Analog Inputs
Input Points
Required
Relative Humidity 5–95% Non-condensing
Weight 9 oz. (256 g)
Successive Approximation
< 12 VDC, Clamped @
12 VDC, 35 mA Max.
Continuous
10 KΩ
250 Ω
1 Mega Ω
0° – 60° Celsius
12
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
PAGE 2 10 NOV 2006 MAN0317-09
2
Ω
ADC920
2 WIRING
V
20
ma
20
ma
5 V
5 V
T
T
20
ma
20
ma
5 V
5 V
T
T
I1
I2
I3
I4
I5
I6
I7
I8
I9
I10
I11
I12
C1
C1
*
C2
C2
C3
C3
C3
001ADC003-R2
The jumper block indicates the
correct jumper positions for the
wiring shown.
For more information, refer to
Section 4.2 (b), Hardware
Configuration in this document.
CH 1
CH 2
CH 3
CH 4
CH 5
CH 6
CH 7
CH 8
CH 9
CH 10
CH 11
CH 12
OCS Bottom View – Shows
*
Corresponding I/O Pin
Pin ADC920
I1*
I2 Input 2
I3 Input 3
I4 Input 4
I5 Input 5
I6 Input 6
I7 Input 7
I8 Input 8
I9 Input 9
I10 Input 10
I11 Input 11
I12 Input 12
C1
C1
C2
C2
C3
C3
C3
Input 1
Thermistor
Common
0 – 5VDC
Common
20mA
Common
3 INTERNAL CIRCUIT SCHEMATIC
50Ω
SmartStack
10K
V Ref
To
Controller
Field
Side
I/O Connector
Com
1+
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
MAN0317-09 10 NOV 2006 PAGE 3
ADC920
4 CONFIGURATION
Note: The status of the I/O can be monitored in Cscape Software.
4.1 Software Configuration
Preliminary configuration procedures that apply to SmartStack™ Modules are contained in the hardware
manual of the controller you are using. Refer to the Additional References section in this data sheet for
a listing of hardware manuals.
I/O Map Tab
The I/O Map describes which I/O registers are assigned to a specific SmartStack™ Module and where the
module is located in the point map. The I/O Map is determined by the model number and location within
the SmartStack™. The I/O Map is not
Module Setup Tab
edited by the user.
a) Input range for each channel may be selected independently.
b) Filter Constant sets the level of digital filtering according to the following chart.
c) In addition to configuring the module setup, the hardware must be jumpered to select the
appropriate range for each channel.
1
2 3 4 5 60 7
Filter
Constant
%Complete [ ]
100
90
80
70
60
50
40
30
20
10
0
60
10040 8020
Scans0
Digital Filtering: The illustration above demonstrates the effect of digital filtering (set with Filter Constant)
on module response to a temperature change.
4.2 Hardware Configuration
The inputs are referenced to the bus common. Each of the inputs can be jumper-selected for one of the
three input types. Behind each of the input pins is a corresponding group of four jumper pins with a
programming plug.
a) To select 5V input: Connect the two pins nearest the connector.
b) To select thermistor input: Connect the two pins nearest input 1.
c) To select 20mA input: Connect the two pins nearest input 12.
Note: It is also necessary to specify the input channel type in Cscape along with the
temperature format.
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
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